mFileReader/FileReader.h at master · Claybarn/mFileReader · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
/*
    ------------------------------------------------------------------

    This file is part of the Open Ephys GUI
    Copyright (C) 2016 Open Ephys

    ------------------------------------------------------------------

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/


#ifndef __FILEREADER_H_B327D3D2__
#define __FILEREADER_H_B327D3D2__


#include "../../../JuceLibraryCode/JuceHeader.h"

#include "../GenericProcessor/GenericProcessor.h"
#include "FileSource.h"

#define BUFFER_SIZE 1024


/**
  Reads data from a file.

  @see GenericProcessor
*/
class FileReader : public GenericProcessor
{
public:
    FileReader();
    ~FileReader();

    void process (AudioSampleBuffer& buffer) override;
    void setParameter (int parameterIndex, float newValue) override;

    AudioProcessorEditor* createEditor() override;

    bool hasEditor()                const  override { return true; }
    bool isGeneratesTimestamps()    const  override { return true; }
    bool isReady()                  override;

    int getDefaultNumDataOutputs(DataChannel::DataChannelTypes type, int)        const override;

    float getDefaultSampleRate()        const override;
    float getBitVolts (const DataChannel* chan)   const override;

    void updateSettings() override;
    void setEnabledState (bool t)  override;

    String getFile() const;
    bool setFile (String fullpath);

    bool isFileSupported          (const String& filename) const;
    bool isFileExtensionSupported (const String& ext) const;
    void createEventChannels();

private:
    Array<const EventChannel*> moduleEventChannels;
    unsigned int count = 0;

    void setActiveRecording (int index);

    unsigned int samplesToMilliseconds (int64 samples)  const;
    int64 millisecondsToSamples (unsigned int ms)       const;

    int64 timestamp;

    float currentSampleRate;
    int currentNumChannels;
    int64 currentSample;
    int64 currentNumSamples;
    int64 startSample;
    int64 stopSample;
    Array<RecordedChannelInfo> channelInfo;

    // for testing purposes only
    int counter;

    ScopedPointer<FileSource> input;

    HeapBlock<int16> readBuffer;

    HashMap<String, int> supportedExtensions;


    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(FileReader);
};


#endif  // __FILEREADER_H_B327D3D2__